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Perform fine-tuning of socketpair and pipe

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- removed unneeded share parameter from pipe on nt
- socktpair(type | SOCK_CLOEXEC) is now polyfilled
- use textwindows for linker micro-optimization
- apologies for auto clang-format diff noise :(
- improve socketpair docstring

See #122
This commit is contained in:
Justine Tunney 2021-03-16 22:44:54 -07:00
parent 4e93750afd
commit 4177489762
11 changed files with 172 additions and 133 deletions
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34
libc/calls/pipe-nt.c
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@ -16,42 +16,12 @@
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/alg/reverse.internal.h"
#include "libc/calls/internal.h"
#include "libc/nt/createfile.h"
#include "libc/nt/enum/accessmask.h"
#include "libc/nt/enum/creationdisposition.h"
#include "libc/nt/enum/filesharemode.h"
#include "libc/nt/ipc.h"
#include "libc/nt/process.h"
#include "libc/nt/runtime.h"
#include "libc/sysv/consts/o.h"
const char kPipeNamePrefix[] = "\\\\?\\pipe\\cosmo\\";
size_t UintToChar16Array(char16_t *a, uint64_t i) {
size_t j = 0;
do {
a[j++] = i % 10 + '0';
i /= 10;
} while (i > 0);
a[j] = 0;
reverse(a, j);
return j;
}
char16_t *CreatePipeName(char16_t *a) {
static long x;
unsigned i;
for (i = 0; kPipeNamePrefix[i]; ++i) a[i] = kPipeNamePrefix[i];
i += UintToChar16Array(a + i, GetCurrentProcessId());
a[i++] = u'-';
i += UintToChar16Array(a + i, GetCurrentProcessId());
a[i++] = u'-';
i += UintToChar16Array(a + i, x++);
a[i] = u'\0';
return a;
}
textwindows int sys_pipe_nt(int pipefd[2], unsigned flags) {
int64_t hin, hout;
@ -66,8 +36,8 @@ textwindows int sys_pipe_nt(int pipefd[2], unsigned flags) {
if ((hin = CreateNamedPipe(pipename, kNtPipeAccessInbound,
kNtPipeWait | kNtPipeReadmodeByte, 1, 65536, 65536,
0, &kNtIsInheritable)) != -1) {
if ((hout = CreateFile(pipename, kNtGenericWrite, kNtFileShareWrite,
&kNtIsInheritable, kNtOpenExisting, 0, 0)) != -1) {
if ((hout = CreateFile(pipename, kNtGenericWrite, 0, &kNtIsInheritable,
kNtOpenExisting, 0, 0)) != -1) {
g_fds.p[reader].kind = kFdFile;
g_fds.p[reader].flags = flags;
g_fds.p[reader].handle = hin;